X2/7=9/7

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Solution for X2/7=9/7 equation: 


X in (-oo:+oo)

(X^2)/7 = 9/7 // - 9/7

(X^2)/7-(9/7) = 0

(X^2)/7-9/7 = 0

1/7*X^2 = 9/7 // : 1/7

X^2 = 9

X^2 = 9 // ^ 1/2

abs(X) = 3

X = 3 or X = -3

X in { 3, -3 }

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